Typewriting machine



Fatented Apr. 7, 1925.

UNITED STATES PATENT OFFICE.

JOHN WALIDHEIM, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO UNDERWOOD TYPE- WRI'IER COMPANY, OF NEW YORK, N. Y., A CORPORATION OFDELAWARE.

TYPEWRITING MACHINE.

Application fi-lcd February 26, 1921. Serial No. 448,047.

To all whom it may concern:

Be it known that I, JOHN WALDHEIM, 3. citizen of the United States, residing 1n Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

The present invention relates to typewriting machines of the continuous billing variety, one form ofwhich is set forth in the patent to W'ernery & Smith, No. 1,132;

055,- grantedMarch 16, 1915, and provides a means for trimming -the side edges of a 15' fan-fold web used in such machines, thus remedying such objections which have arisen in connection with the use of such webs in machines of this type.

The fan-fold webs used in continuous billing machines are perforated at their-v edges to facilitate the folding and the accurate superposing of the printed forms.- 'When the sheets of the web are separated ing the forms. It is therefore desirable to trim the side edges of the web in such manner as to provide smooth edges on the separate sheets without permitting creeping of the sheets. For this purpose there is mounted at the rear of the carbon-paper carriage, at each side thereof, a cutting blade exterior to the 'web and disposed in a plane at'right angles to that of the web .and inclined to the side edge thereof so as to project into said web, and a guide cooperating with each cutting blade for guiding the web into the cutting blades, so that, upon retraction of the carbon-carrier, the blades will trim: off and throw aside portions of the edges of the web and separate the latter into sheets. This is done at the portion of the web which is not separated aroun or spread by the carbon-holding blades, between which the web is threaded. Only the portion about to be typed is trimmed, the remainder of the webremaining united at the edges, thus guarding against relative shifting of the sheets. The rapid rearward movement of the sharp blades and co-operating guides will result in a clean out, leaving the separate sheets of the web with smooth, even edges. Means may be provided for adjusting the height of the cutting blade, and also the distance which the blade projects into the web.

To obviate the necessity of frequently changing the blades, they may be circular in form so that progressive sharp portions of the periphery may be utilized in place of the used, dull ones.

Other features and advantages will here;

inafter appear.

In the accompanying drawings,

Figure 1' is a perspective view ofa continuous billing machine with the invention applied thereto, only such parts of the ma- I chine being shown as directly co-operate with the invention.

Figure 2 is a longitudinal vertical section of the device shown in Figure 1.

Figure 3 is a plan .view of the device shown in Figure 1.

Figure 4 is a detail showing a modified form of cutting-blade.

In the drawings, 10 is a platen of the fan-fold machine of the type disclosed in the aforesaid Wernery & Smith patent. The platenv forms 'part of the usual carriage (not shown) which is provided witha rearward extension comprising side rails 11 and 12 which form runways for a carthon-carrier or carriage 13. A web of worksheets 20 is fed from any suitable source from the rear to and over carbon-carrier 13, over gulde-bar 21, and thence under and the platen to the printing'point.

The carbon-carrier is provided with the usual stepped side-supporting members 22, having detachably connected therewith the inwardly-extending carbon attaching bars or fingers 23, said fingersbeing pro'ected alternately from opposlte sides at di erent be fed, a reciprocable carbon-carrier extent corresponding to the range of movement of said carbon-carrier and forming smooth edges upon the disconnected sections of the plies, and leaving the remainder of the web ur. cut, preparatory to further typing operations thereon.

2. In a continuous billing typewriting machine comprising a carriage, and a platen journaled in said carriage and around which a fan-folded web of sheets may be fed in combination, a rearward extension of said carriage, a carbon-carrier through which the web is threaded, said carbon-carrier mounted for forward and rearward movement on said extension, and means mounted on said carbon-carrier exterior to the web for trimming ofi' strips at each side edge of said web to disconnect said sheets and to produce smooth side edges therefor, said trimming means being rendered effective by the movement of the carrier relative to said web, said carbon-carrier located between the trimming means and the platen.

3. In a typewriting machine, in combination, a platen over which a fan-fold web rigay or withdrawing carbon-sheets from a used portion of the fan-fold web, the web threading through said carbon-carrier, and smoothtrimmingmeans exterior to the web and connected to said carbon-carrier and rendered effective by a withdrawing movement of said carbon-carrier to trim off a portion or the folded side edges of a section of said fan-fold web, prior to typing on said section, to disconnect the superposed plies of said web for a length corresponding to the- -range of movement of said carbon-carrier and to leave smooth edges upon the disconnected plies, said trimming means comprising a single trimmer at each side ofthe fan-fold web and operativeupon the web in advance of its passing through the carboncarrier.

4. In a typewriting machine, in combination, a platen over which a fan-fold web may be fed, a reciprocable carbon-carrier for withdrawing carbon-sheets from a used portion of the fan-fold web, theweb threading through said carbon-carrier, and smoothtrimming means exterior to the web and mounted on said carbon-carrier at its rear and efi'ective upon the web before it opens to pass through the carbon-carrier and rendered efi'ective by a withdrawing movement of said carbon-carrier to cut off a portion of the folded side edges of a section of said fan-fold web, prior to typing on said section, to disconnect the superposed plies of said web and to leave smooth edges upon the disconnected plies, while the'remainder of the web remains uncut, preparatory to further typing operations thereon, said trimming means comprising for each side a knife to cut all of the plies, each knife being in a plane perpendicular to said web and having its cutting edge inclined so as to efi'ect a draw-cut on said plies prior to the separation thereof efi'ectedby the carbon-carrier.

5. In a typewriting machine, in combination, a platen over which a fan-fold web may be fed, a reciprocable carbon-carrier for withdrawing carbon-sheets from a used portlon of the fan-fold web, smooth-trimmlng means exterior to the web and mount- .ed on said carbon-carrier at its rear and rendered efi'ective by a withdrawing movement of said carbon-carrier to trim off a portion of the folded side edges of a section of said fan-fold web, prior to typing on said section, to disconnect the superposed plies of said web and to leave smooth edges upon the disconnected plies, said trimming means comprising for each side at which trimming is to be efiected a knife to cut all of the plies, said knife being in a plane perpendicular to said web and having its cutting edge inclined so as to efi'ect a draw-cut on said plies, and a guide adjacent each knife and holding the plies in compact relation where they are presented to said inclined cutting edge, said guides also cooperating to prevent edgewise displacement of the web.

6. In a typewriting machine, in combination, a platen overwhich a fan-fold web may. be fed, a reci rocable carbon-carrier for withdrawing car on-sheetsfrom a used portion of the fan-fold web, smooth-trimming means mounted on said carbon-carrier at its rear and rendered effective by a withdrawing movement of said carbon-carrier to cut off a portion of the f lded side edges of a section of said fan-fold web, prior to typing on said section, to disconnect the superposed plies of said web and to leave smooth edges upon the disconnected plies, said trimming means comprising for each side at which trimming is to be effected a knife to cut all of the plies, said knife being in a plane perpendicular to said web and having its cutting edge inclined so as to eifect'a draw-cut on said plies, and a guide comprising portions to engage the web on opposite faces to resent the folded side edges in compact con ition to said knife.

7; In a typewriting machine, in combination, a platen over which a fan-fold web may be fed, a reciprocable carbon-carrier for withdrawing carbon-sheets from a used portion of the fan-fold web, smooth-triming means mounted on said carbon-carrier at its rear and rendered effective by a withdrawing movement of said carbon-carrier typing on said section, to disconnect the superposed plies of said web and to leave side at which trimming is to be effected a knife to cut all of the plies, said knife being in a plane perpendicular to said web and having its cutting edge inclined so as to effect a draw-cut on said plies, and means to permitthe width of the cut-off portion to bevaried, comprising a mounting for said knife su ch that the latter may be moved inwardly and outwardly with reference to the adjacent side of the web and may be secured in adjusted position.

8. In a typewriting machine, in combination, a platen over which a fan-fold web may be fed, a reciprocable carbon-carrier for Withdrawing carbon-sheets from a used por tion of the fan-fold web, smooth-trimming means mounted on said carbon-carrier at its rear and rendered effective by a withdrawing movement of said carbon-carrier to cut off a portion of the folded side edges of a section of said fan-fold web, prior to typing on said section, to disconnectthe superposed plies of said web and to leave smooth edges upon the disconnected plies, said trimming means comprising for each side at which trimmingds to be effected a knife to cut all of the plies, said knife being ina plane perpendicular to said web and having its cutting edge inclined so as to effect a draw-cut on saidplies, and an adjustable mounting for said knife such that the latter may be shifted to change the portion of its edge used for cutting off the folded side edges of said web.

' 9. In a continuous billing typewriting machine comprising a carriage, and a platen j ournaled in said carriage and around which a. web of sheets is adapted to be fed, in com bination, an extension of said carriage, a carbon carrier mounted for. forward and rearward movement on said extension, and

means including a knife mounted on the rear of said carbon-carrier for cutting oif an edge portion ofsaid web to disconnect sheets at that edge and to provide smooth edges for said sheets where out, said cutting means being rendered effective by a rearward movement of the carrier relative to said web, said knife being so. mounted in aplane perpendicular tothe plane of said web that it may be adjusted vertically to bring diflerent portions of the knife into the plane of said web. 10. In a continuous billing typewriting machine comprising a oarriage, and a platen journaled in said carriage and around which a web of sheets is adapted .to be fed, in combination, an extension of said carriage, a carbon-carrier mounted for forward and rearward movement on said extension, and

a knife mounted on the rear of said carboncarrier adjacent the edge of said web to be cut off, said cutting means being rendered effective by a rearward movement of the carrier relative to said web, said knife being mounted in a plane perpendicular to the plane of said web and inclined with respect to the edge of said web, so that the knife may project inwardly beyond theedge of said web a distance corresponding to the 76 width of the strip which it is desired to cut ofi from the web.

a guide mounted on the rear of the carrier \8 and through which the adjacent. side edges. of the sheets of said web pass as a compact mass, and a knife mounted on said carrier adjacent said guide and renderedeffective by a rearward movement of said carrier to 'cut oil portions of the side edges of said sheets as they emerge from the guide to disconnect said sheets and leave them with smooth edges, said guide preventin displacement of the web by the knife the cutting operation.

' 12. In a machine of the character described, the combination with a carbon-carrier through which a longitudinally folded work-web is threaded, of means on the rear of said carrier to trim off a folded side edge of' the web, before advancing through and being opened up by the carrier, to disconnect the plies of a section of the web and leave the latter with smooth edges, said trimming means comprising at a side edge a knife exterior to the web and cutting through all of said plies, said knife being rendered effective by relative movement of the carrier and the web longitudinally of the latter, to an extent dependent upon such movement, leaving the remainder of the web whole preparatory to further typing oper ations thereon, and means supporting the web at said knife. '13. In a continuous billing typewriting machine comprising a carriage, and a platen journaled in said carriage and around which a' web of sheets may be fed, in combination, K an extension of said carria e, a carbon-carrier mounted for forwar and rearward movement on said extension, guides mounted on the rear of the carrier, one on each side thereof, each of said guides having a narrow opening through which the sheets of the web pass horizontally in a compact mass, and means rendered effective by a rearward movement of the carbor-carrier for cuttin off portions of the side edges of said web to disconnect said sheets and provide smooth uring edges therefor, said cutting means comprising knives mounted on said carrier adjacent sald guides and lying in planes perpendicular to the plane of the web, whereby the ed es of the compact mass of sheets of said W5) will be cut off adjacent the guides.

14. In a machine of the character described, the combination with a carbon-carrier, of means at the rear of said carrier to .cut off the folded side edges of a web, be-

cutting action of the knife.

15. In a typewriting machine, the combination of a platen over which a web may be fed, a carbon-carrier, the carbon-carrier and the web being relatively movable in a direction lengthwise of the web, said web comprising several layers folded at a side edge of said web, a knife exterior to the web and lying in a plane perpendicular to that of the web, and means rendering said knife effective for trimming off the fold from said-web to disconnect said layers and leave the latter with smooth edges, and concomitantly effecting a relative shift between the web and the carbon -carrier.. f

16. In a typewriting machine, the combination of a platen over which a fan-fold Web may be fed with interleaved carbonsheets, a carbon-carrier from which the carbon-sheets extend and through which the web is threaded, and means for disconnecting the plies of said web andleaving the disconnected plies with opposite smooth edges, said disconnecting means comprising a duplex cutter device exterior to the web and perpendicular to the plane of the web, said cutter device being connected with said carbon-carrier to be operated thereby to trim off a portion of the web at the adjacent side edges thereof in advance of opening up and passing through said carboncarrier.

17. In a typewriting machine having a platen and means for presenting a sidefolded web thereto, and carbon-holding blades introduced between the plies of the web and separating said plies, the combination with means for effecting a relative shift between the carbon-holding blades and the folded web, of means outside the separated area of the plies and exterior to the web for trimming oi the side edge of the folded web concomitantly with said shifting operation and to an extent corresponding to the extent of shift, said trimming means including a cutter and means at said cutter to support the web.

18. In a typewriting machine having a platen and means for presenting a fan-fold web thereto, and carbon-holding blades introduced between the plies of the web and separating the same, the combination of means outside the separated area of the plies and exterior to the web for trimming off the side edges of the fan-fold web, and

meansto operate said trimming means.

19. In a typewritingmachine having a platen and means for presenting a fan-fold web thereto, and carbon-holding blades introduced between the plies of the web and separating said plies, the combination with means for effecting a relative shift bet-ween the carbon-holding blades and the fan-fold web, of means outside the separated area of the plies and exterior to the web for trimming off the side edges of the fan-fold web concomitantly with said .shifting operation,

and to an extent corresponding to the extent of the shift. I

20. In a typewriting machine having a platen and means for presenting a fan-fold web thereto, and carbon-holding blades introduced between the plies of the web and separating said plies, the combination with means for effecting a relative shift between the carbon-holding blades and the fan-fold web, of means outside the separated area of the plies and exterior to the web for trimming off the side edges of the fan-fold Web concomitantly with said shifting operation, and to an extent corresponding to the extent of the shift, said trimming means comprising cutters, one for each side of the fan- ,fold web, and means at said cutters to support the edges of the web at the trimming operation.

21. In a typewriting machine having a platen and means for presenting a fan-fold web thereto, and carbon-holding blades introduced between the plies of the web and.

separating said plies, the combination with means for effecting a' relative shift between,

the carbon-holding blades and'the fan-fold web, of means outside the separated area of the plies and exterior to the web for trim ming off the side edges of the fan-fold web concomitantly with said shifting operation,

and to an extent corresponding to the extent of the shift, said trimming means compr1s-" in cutters, one for each side ofthe fan-fold we and means at said cutters to compact the web.

22..In a typewriting machine havin a .platen and means for presenting a fanold web thereto, and carbon-holding blades'introduced between the plies of the web and I separating said plies, the combination with means for efl'ecting a relative shift between the carbon-holding blades and the fan-fold web, of means outside the separated area of the plies and exterior to the web for trimming off the side edges of the fan-fold web concomitantly with said shifting operation, and to an extent corresponding to the extent of the shift, said trimming means being in JOHN WALDHEIM. Witnesses:

CATHERINE A. NEWELL,

EDITH B. LIBBEYQ 

